US3336133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the purification and concentration of cobalt and nickel
Assignee: Kao Corp
•
Filing: 1966-10-26
•
Granted: 1967-08-15
•
Expires: 1986-10-26
Abstract
No abstract record available.
Inventors
- 👤 Funatsu Makoto
- 👤 Kita Hisahiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:05
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/20; C22B3/26; C22B3/38; C22B3/385; C22B3/387; C22B3/40; C22B3/409; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PROCESS FOR THE SEPARATION OF A METAL SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, AND MIXTURES THEREOF FROM AN AQUEOUS SOLUTION CONTAINING SAID METAL SUBSTANCE WHICH COMPRISES CONTACTING SAID AQUEOUS SOLUTION AT A PH BETWEEN 1.0 AND 5.0 WITH A LIQUID WATER-IMMISCIBLE EXTRACTING AGENT COMPRISING AN ORGANIC HYDROGEN THIOPHOSPHATE SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
58 words
A PROCESS FOR THE SEPARATION OF A METAL SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, AND MIXTURES THEREOF FROM AN AQUEOUS SOLUTION CONTAINING SAID METAL SUBSTANCE WHICH COMPRISES CONTACTING SAID AQUEOUS SOLUTION AT A PH BETWEEN 1.0 AND 5.0 WITH A LIQUID WATER-IMMISCIBLE EXTRACTING AGENT COMPRISING AN ORGANIC HYDROGEN THIOPHOSPHATE SELECTED FROM THE GROUP CONSISTING OF:
References Cited (Backward Citations)
US2904568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |